| Riverside County | | | 1126 |Sandy loam soil, Paso Robles, | .55| 17.27 | .095 | San Luis Obispo Co. | | | 2301 |Red hill soil, Upper Lake, Lake Co. | .81| 16.90 | .137 1607 |Plateau soil of desert, Lancaster, | .25| 16.80 | .042 | Los Angeles Co. | | | 1159 |Sandy plains soil, Tulare, Tulare Co. | .37| 16.75 | .062 1900 |Sandy soil, near Modesto, Stanislaus Co. | .84| 16.65 | .140 1113 |Clay loam soil (slate), Jackson, Amador Co. | .54| 16.60 | .090 1149 |Adobe clay soil, near Paso Robles, | .47| 16.18 | .074 | San Luis Obispo County | | | 1538 |Mesa soil, Chino, San Bernardino Co. | .65| 16.08 | .105 1147 |Sandy loam soil, Paso Robles, | .66| 16.06 | .106 | San Luis Obispo Co. | | | 2403 |Valley Soil, Wheatland, Yuba Co. | 1.50| 16.00 | .240 1281 |Red Mesa soil, Pomona, San Bernardino Co. | .58| 15.50 | .090 1117 |Sandy granitic soil, near Jackson, Amador Co. | .80| 15.27 | .123 1406 |Red loam soil, Arlington Heights, Riverside, | .30| 15.00 | .045 | Riverside County | | | 1172 |Red clay loam soil, east of Tulare, Tulare Co.| .72| 14.75 | .106 1958 |Sandy Mesa soil, Nipomo, San Luis Obispo Co. | .85| 14.45 | .122 1423 |Chocolate-red soil, Carisa plain, | .39| 14.36 | .056 | San Luis Obispo County | | | 1291 |Sandy hill land, near Jackson, Amador Co. | .76| 14.34 | .109 585 |Wire-grass loam soil, Visalia, Tulare Co. | 1.00| 14.10 | .146 863 |Red ridge loam soil, Grass Valley, Nevada Co. | 2.89| 13.91 | .402 1907 |Dark loam soil, near Chino, San Bernardino Co.| .92| 13.26 | .121 1115 |Sandy granitic soil, near Jackson, Amador Co. | .85| 13.20 | .112 332 |Plateau desert soil, Mojave, Los Angeles Co. | .28| 12.50 | .035 2126 |Gravelly soil, East Highlands, | .62| 11.75 | .070 | San Bernardino Co. | | | 1910 |Ojai Valley soil, Nordhoff, Ventura Co. | 1.64| 11.21 | .183 2187 |Sandy loam soil, Soledad, Monterey Co. | .97| 11.10 | .110 1759 |Sandy soil, Perris Valley, Riverside Co. | .53| 11.04 | .059 774 |Bench slope soil, Ontario, San Bernardino Co. | 1.29| 10.85 | .140 1984 |Red soil, East Highlands “ “ “ | .58| 10.50 | .060 2325 |Silt soil of desert, Imperial, San Diego Co. | .65| 10.70 | .070